Ramirez says he's been bothered by the soreness for a few days and experienced pain while warming up for Tuesday's game with the Colorado Rockies. Ramirez says he doesn't believe the injury is related to his oblique.

The Cubs promoted right-hander Yoervis Medina and selected the contract of sinkerball pitcher Ben Rowen from Triple-A Iowa. The Cubs signed Rowen on July 5 after the Baltimore Orioles released him.